AIR implemented the U.S. News comprehensive rankings methodology, which is based on the key principles that a great high school must serve all of its students well, not just those who are college bound, and that it must be able to produce measurable academic outcomes to show the school is successfully educating its student body across a range of performance indicators.

National Rankings

A three-step process determined the Best High Schools. The first two steps ensured that the schools serve all of their students well, using performance on state proficiency tests as the benchmarks. For those schools that made it past the first two steps, a third step assessed the degree to which schools prepare students for college-level work.

• Step 1: The first step determined whether each school's students were performing better than statistically expected for the average student in the state. We started by looking at reading and math results for all students on each state's high school proficiency tests.

We then factored in the percentage of economically disadvantaged students – who tend to score lower – enrolled at the school to identify the schools that were performing better than statistical expectations.

• Step 2: For those schools that made it past this first step, the second step determined whether the school's least-advantaged students – black, Hispanic and low-income – were performing better than average for similar students in the state.

We compared each school's math and reading proficiency rates for disadvantaged students with the statewide results for these student groups and then selected schools that were performing better than this state average.

• Step 3: Schools that made it through the first two steps became eligible to be judged nationally on the final step – college-readiness performance – using Advanced Placement or International Baccalaureate test data as the benchmarks for success, depending on which program was largest at the school.